EP2273938A1 - Strahlendurchlässige orthopädische fixierplatte - Google Patents
Strahlendurchlässige orthopädische fixierplatteInfo
- Publication number
- EP2273938A1 EP2273938A1 EP09733218A EP09733218A EP2273938A1 EP 2273938 A1 EP2273938 A1 EP 2273938A1 EP 09733218 A EP09733218 A EP 09733218A EP 09733218 A EP09733218 A EP 09733218A EP 2273938 A1 EP2273938 A1 EP 2273938A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fixation plate
- ring
- orthopedic fixation
- supporting elements
- sleeve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B17/56—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor
- A61B17/58—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or setting implements
- A61B17/60—Surgical instruments or methods for treatment of bones or joints; Devices specially adapted therefor for osteosynthesis, e.g. bone plates, screws or setting implements for external osteosynthesis, e.g. distractors, contractors
- A61B17/62—Ring frames, i.e. devices extending around the bones to be positioned
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B17/00—Surgical instruments, devices or methods
- A61B2017/00831—Material properties
- A61B2017/00902—Material properties transparent or translucent
- A61B2017/00915—Material properties transparent or translucent for radioactive radiation
Definitions
- the invention relates to an radiolucent orthopedic fixation plate for use with an external fixator as claimed in claim 1.
- radiolucent fixation elements made from plastic or composite synthetic materials which are radiolucent.
- Such an external fixation device is known from WO 97/30651 forming the preamble of claim 1.
- These materials have the advantage not to mask the fracture area in X-ray images. They tend to have creeping issues, decreasing the tension within the fixation device, lowering the stiffness over time, which as a consequence may influence the bone healing.
- WO 97/30651 uses a core of a resin matrix reinforced with fibers, but the guiding length of the cylindrical holes for attaching connectors is quite short.
- US 2004/0167518 suggests to provide the rings in a radiolucent body material as polycarbonate or carbon fiber.
- the rings are in cross -section double-T shaped having apertures or holes to provide the attachment points for the connectors in the thinner middle sections .
- Two separate beryllium rings are provided in the thicker T-ends of the fixator rings to increase stiffness while avoiding X-ray shading. These rings suffer the same problems as the former mentioned prior art.
- the invention uses inter alia the insight that the fixation devices use long cylindrical holes as interface for attaching connectors .
- the inventors have realized that the portions of the fixation devices around such long holes are the main reason for the shielding effect leading to insufficient X-ray images.
- Another aspect of the invention is the creation of a cost- effective strong external fixator element, which does not have the structural disadvantages of X-ray transparent elements.
- Another aspect of the invention is also to provide an improved orthopedic fixation plate comprising a plurality of cylindrical holes for attaching connectors of a external fixation system.
- the fixation plate comprises two supporting elements around each orifice of a cylindrical hole wherein the supporting elements are connected with a sleeve and said supporting elements are also connected with a longitudinally oriented ring element arranged in a radial distance of said sleeve.
- the supporting elements can be radially oriented flat ring plates which can comprise holes within which sleeves are mounted .
- the longitudinally oriented ring element can be produced as a hollow cylinder element provided inside the connecting circle of the holes .
- each sleeve is about one half of the thickness of the ring element .
- the orthopedic fixation plate comprising the ring element, the supporting elements and the sleeves are preferably made in light metals, especially from the group comprising aluminium, titanium, magnesium.
- Fig. 1 shows a perspective view of an embodiment of an orthopedic fixation plate according to the present invention
- Fig. 2 shows a lateral view of the ring portions of the orthopedic fixation plate according to Fig. 1 without the guiding sleeves ,
- Fig. 3 shows a section view of the orthopedic fixation plate according to another embodiment according to the invention.
- Fig. 4 shows a detailed view of the orthopedic fixation plate according to Fig. 3.
- the embodiments are based inter alia on the insight that light weight metals are in principle non-radiolucent materials.
- non-radiolucent materials as aluminium, titanium, magnesium and other light metals as well as alloys of these materials are nevertheless to a certain degree radiolucent if the wall material is thin enough.
- the device according to an embodiment of the invention is made of an aluminum alloy wherein the mean value of the cross section, independent of its direction, is sufficient radiolucent to view the bone behind the device on a X-ray photo.
- Light metals are metals of low atomic weight.
- the cutoff between light metals and heavy metals varies and can be defined to be a density of 4,5 g/cm 3 , light metals being metals having a lower density.
- Alkali metals, earth alkaline metals as well as transition metals of the third group • (Sc, Y) as well as fourth group (Ti) and aluminium are considered light metals. Additional metals up to nickel are often included as well . Metals heavier than nickel are usually called heavy metals.
- the orthopedic fixation plate 10 uses a ring profile 13 with an open U-shape having free ends 11 and 12. Alone such a shape has no strong mechanical properties especially if loaded with torsion.
- the ring profile is nevertheless named a plate since the profile is used as is a conventional plate.
- Multiple thin tubes 31 are connected along the circumference to achieve mechanical properties. These thin tubes 31 also form the long cylindrical holes 21 for modular connections and can absorb strong loads due to the profiles 11 and 12 strengthening the plate at the upper and lower side.
- the material to be used can be aluminium, titanium, magnesium or other light metals. It is also possible to use alloys of these materials.
- Fig. 1 shows a perspective view of an embodiment of the invention representing a fixation plate 10.
- Fig. 1 is a perspective view, angular from the top.
- the fixation plate 10 comprises an inner ring profile 13 to be positioned around a limb of the patient.
- the ring profile 13 has a hollow cylindrical form extending in the longitudinal direction of said limb to be positioned inside the ring 13.
- the longitudinal direction of said limb to be positioned is the central axis of symmetry of the ring 13.
- the ring 13 comprises a radially oriented upper plate 11 and a radially oriented lower plate 12. Both- ring plates 11 and 12 are arranged in a longitudinal distance from each other and are congruent in a top view along said longitudinal axis of the limb to be positioned.
- the ring plates 11 and 12 comprise a plurality of holes 21 oriented perpendicular to the central axis of symmetry of the plates 11 and 12. There can be e.g. fifty-two holes 21 as in Fig. 1 or a greater or smaller number, which also depends on the diameter of the orthopedic plate 10, i.e. the diameter of the inner ring 13. Fifty-two holes 21 are arranged in a mutual annular distance of 6 degree 55 5/13 minutes. This angle of course depends on the number of regularly angular spaced holes 21.
- cylinder relates to the fact that the cylinder ring 13 has a substantial dimension in parallel to the longitudinal axis of the plate 10.
- edges 22 and 42 are affixed to the ring 13.
- the embodiment according to Fig. 1 comprises a shoulder 23 extending beyond the upper and lower surface of the rings 11 and 12, respectively. In other embodiments (not shown) the surface of the rings 11 and 12 can be flush with the free edges of the inner ring 13.
- Two corresponding holes 21 in the upper and lower plates 11 and 12 are oriented in such a way, that they have a common axis.
- the common axis is parallel to the above mentioned longitudinal axis of the device 10.
- Existence of this common axis for each pair of holes 21 signifies that such two holes 21 from plates 11 and 12 are associated to each other and this allows the introduction of hollow sleeves 31 into each such pair of holes 21.
- the hollow sleeves 31 to not extend beyond the upper or lower surface of the upper and lower plates 11 and 12, respectively.
- each hole 21 has therefore orifices at the surface of the plates 11 and 12. These orifices are thus forming the end surfaces for connector elements which are introduced in the hole 21.
- the area of the corresponding orifices are connected on one hand by said sleeve 31 and on the other hand by the inner ring 13. It would therefore also be possible, in a less favorable embodiment, to replace the inner ring 13 by an outer ring.
- the plates 11 and 12 can also be named supporting elements, since they create the connection portion for the sleeves 31.
- Fig. 2 shows a lateral view of the ring portions 11 and 12 of the orthopedic fixation plate according to Fig. 1 without the guiding sleeves 31.
- This embodiment is based on the representation of Fig. 1 wherein the guiding sleeves 31 are separate parts, attached to the ring plates 11 and 12 attached at the inner ring 13.
- Fig. 3 representing a section view of an orthopedic fixation plate according to another embodiment of the invention as well as in Fig. 4 being a detailed view of the orthopedic fixation plate according to Fig. 3
- the inner ring 13 is shown as a closed ring. In other embodiments of the invention the ring 13 and plates 11 and 12 can comprise a partial ring segment.
- the "ring" can be an angle bracket or a ring segment .
- the holes 21 are arranged on a connecting circle portion, wherein the wording circle is used independent of the from of the fixation plate (ring, ellipse, L-bracket etc.) .
Landscapes
- Health & Medical Sciences (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Medical Informatics (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Molecular Biology (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Surgical Instruments (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP09733218A EP2273938B1 (de) | 2008-04-18 | 2009-04-15 | Strahlendurchlässige orthopädische fixierplatte |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP08154761A EP2110090A1 (de) | 2008-04-18 | 2008-04-18 | Strahlendurchlässige orthopädische Fixierungsplatte |
| PCT/EP2009/054471 WO2009127661A1 (en) | 2008-04-18 | 2009-04-15 | Radiolucent orthopedic fixation plate |
| EP09733218A EP2273938B1 (de) | 2008-04-18 | 2009-04-15 | Strahlendurchlässige orthopädische fixierplatte |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP2273938A1 true EP2273938A1 (de) | 2011-01-19 |
| EP2273938B1 EP2273938B1 (de) | 2012-04-25 |
Family
ID=39684449
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP08154761A Withdrawn EP2110090A1 (de) | 2008-04-18 | 2008-04-18 | Strahlendurchlässige orthopädische Fixierungsplatte |
| EP09733218A Active EP2273938B1 (de) | 2008-04-18 | 2009-04-15 | Strahlendurchlässige orthopädische fixierplatte |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP08154761A Withdrawn EP2110090A1 (de) | 2008-04-18 | 2008-04-18 | Strahlendurchlässige orthopädische Fixierungsplatte |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US9011438B2 (de) |
| EP (2) | EP2110090A1 (de) |
| AT (1) | ATE554714T1 (de) |
| ES (1) | ES2385641T3 (de) |
| WO (1) | WO2009127661A1 (de) |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8858555B2 (en) | 2009-10-05 | 2014-10-14 | Stryker Trauma Sa | Dynamic external fixator and methods for use |
| GB201008281D0 (en) | 2010-05-19 | 2010-06-30 | Nikonovas Arkadijus | Indirect analysis and manipulation of objects |
| US11141196B2 (en) | 2010-08-11 | 2021-10-12 | Stryker European Operations Holdings Llc | External fixator system |
| US8945128B2 (en) | 2010-08-11 | 2015-02-03 | Stryker Trauma Sa | External fixator system |
| EP2417924B1 (de) | 2010-08-11 | 2015-07-01 | Stryker Trauma SA | Externes Befestigungssystem |
| US9101398B2 (en) | 2012-08-23 | 2015-08-11 | Stryker Trauma Sa | Bone transport external fixation frame |
| JP6382293B2 (ja) | 2013-03-13 | 2018-08-29 | デピュイ・シンセス・プロダクツ・インコーポレイテッド | 外部骨固定装置 |
| US9039706B2 (en) | 2013-03-13 | 2015-05-26 | DePuy Synthes Products, Inc. | External bone fixation device |
| US9962188B2 (en) | 2013-10-29 | 2018-05-08 | Cardinal Health 247. Inc. | External fixation system and methods of use |
| EP3072541A1 (de) | 2015-03-27 | 2016-09-28 | Region Syddanmark | Verbessertes brustabflusssystem und -verfahren |
| US10010350B2 (en) | 2016-06-14 | 2018-07-03 | Stryker European Holdings I, Llc | Gear mechanisms for fixation frame struts |
| US10835318B2 (en) | 2016-08-25 | 2020-11-17 | DePuy Synthes Products, Inc. | Orthopedic fixation control and manipulation |
| US10874433B2 (en) | 2017-01-30 | 2020-12-29 | Stryker European Holdings I, Llc | Strut attachments for external fixation frame |
| US11272957B2 (en) | 2018-10-04 | 2022-03-15 | University Of Utah Research Foundation | Coupled torsional fixator and method of use |
| US12274475B2 (en) | 2018-10-04 | 2025-04-15 | Peter M. Stevens | Automated coupled torsional fixators and method of use |
| US11337761B2 (en) | 2019-02-07 | 2022-05-24 | Stryker European Operations Limited | Surgical systems and methods for facilitating tissue treatment |
| US11439436B2 (en) | 2019-03-18 | 2022-09-13 | Synthes Gmbh | Orthopedic fixation strut swapping |
| US11304757B2 (en) | 2019-03-28 | 2022-04-19 | Synthes Gmbh | Orthopedic fixation control and visualization |
| US11334997B2 (en) | 2020-04-03 | 2022-05-17 | Synthes Gmbh | Hinge detection for orthopedic fixation |
Family Cites Families (39)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2055024A (en) * | 1934-08-07 | 1936-09-22 | Jr Joseph E Bittner | Fracture reducing splint |
| US3863037A (en) * | 1970-09-03 | 1975-01-28 | Nelco Corp | Electrical box hanger structure |
| SU517196A1 (ru) * | 1974-07-22 | 1977-09-25 | Центральный Ордена Трудового Красного Знамени Научно-Исследовательского Институт Травматологии И Ортопедии | Аппарат дл репозиции и фиксации костных отломков |
| FR2345132A1 (fr) * | 1976-03-26 | 1977-10-21 | Judet Robert | Dispositif articule de fixation pour le maintien en position relative fixe de parties osseuses non alignees |
| US4185623A (en) * | 1978-07-18 | 1980-01-29 | Oganesian Oganes V | Apparatus for restoration of hip joint mobility |
| CH630798A5 (fr) * | 1979-01-16 | 1982-07-15 | Jaquet Orthopedie | Fixateur externe pour osteosynthese. |
| US4308863A (en) * | 1979-10-18 | 1982-01-05 | Ace Orthopedic Manufacturing, Inc. | External fixation device |
| US4450834A (en) * | 1979-10-18 | 1984-05-29 | Ace Orthopedic Manufacturing, Inc. | External fixation device |
| US4403606A (en) * | 1980-05-09 | 1983-09-13 | The Regents Of The University Of California | Compatible internal bone fixation plate |
| US4889111A (en) * | 1984-02-08 | 1989-12-26 | Ben Dov Meir | Bone growth stimulator |
| CH664079A5 (fr) * | 1985-01-24 | 1988-02-15 | Jaquet Orthopedie | Element d'arceau et fixateur externe pour osteosynthese et osteoplastie. |
| FR2576774B1 (fr) | 1985-02-07 | 1990-03-30 | Issoire Aviat Sa | Dispositif de positionnement tridimensionnel de deux pieces quelconques, en particulier de deux parties d'os, et permettant de modifier ledit positionnement |
| AT384360B (de) | 1985-09-18 | 1987-11-10 | Kurgansky Niiex I Klinicheskoi | Antrieb fuer kompressions-distraktionsapparate |
| DE3720242A1 (de) * | 1987-06-19 | 1988-12-29 | Schewior Thomas Dr Med | Ringfixateur zum einrichten von knochenabschnitten und/oder -fragmenten und zum erzeugen von knochen-spannlagen |
| US5062844A (en) | 1990-09-07 | 1991-11-05 | Smith & Nephew Richards Inc. | Method and apparatus for the fixation of bone fractures, limb lengthening and the correction of deformities |
| WO1992014426A1 (en) | 1991-02-20 | 1992-09-03 | Danek Medical, Inc. | Improved external fixation frame assembly |
| US5766173A (en) * | 1993-06-10 | 1998-06-16 | Texas Scottish Rite Hospital For Children | Distractor mechanism for external fixation device |
| WO1995005782A1 (en) * | 1993-08-27 | 1995-03-02 | Robin Peter Brown | Apparatus and method for surgically securing bone parts |
| US5591169A (en) * | 1994-06-14 | 1997-01-07 | Benoist; Louis | Device and method for positioning and holding bone fragments in place |
| DE4421223A1 (de) * | 1994-06-17 | 1995-12-21 | Fischer Juergen | Gerät zur variablen Fixierung organischer und anorganischer fester Substanzen |
| US5496319A (en) * | 1994-06-27 | 1996-03-05 | Zimmer, Inc. | External fixation apparatus |
| US5971984A (en) * | 1995-03-01 | 1999-10-26 | Smith & Nephew, Inc. | Method of using an orthopaedic fixation device |
| US5728095A (en) * | 1995-03-01 | 1998-03-17 | Smith & Nephew, Inc. | Method of using an orthopaedic fixation device |
| EP0814714B1 (de) * | 1995-03-01 | 2005-10-05 | Smith & Nephew, Inc. | Räumlicher rahmen |
| IT1289078B1 (it) | 1996-02-21 | 1998-09-25 | Orthofix Srl | Dispositivo fissatore esterno per la chirurgia ossea |
| CA2245158C (en) | 1996-02-22 | 2004-09-28 | E.I. Du Pont De Nemours And Company | External fixation device with composite rings |
| US5891143A (en) * | 1997-10-20 | 1999-04-06 | Smith & Nephew, Inc. | Orthopaedic fixation plate |
| AT408317B (de) * | 1998-04-09 | 2001-10-25 | Mepura Metallpulver | Verfahren zur herstellung von schaummetall-formkörpern |
| US5997537A (en) * | 1998-05-28 | 1999-12-07 | Electro Biology, Inc. | Ring system for external fixation of bone and related method |
| US6030386A (en) * | 1998-08-10 | 2000-02-29 | Smith & Nephew, Inc. | Six axis external fixator strut |
| WO2001022892A1 (en) | 1999-09-28 | 2001-04-05 | Bundgaard Kristian G | Method of measuring bone strength, apparatus for measuring bone strength and fixation device |
| ES2279752T3 (es) * | 2000-05-09 | 2007-09-01 | Orthofix S.R.L. | Fijador con anillo. |
| RU2211000C1 (ru) | 2001-12-21 | 2003-08-27 | Государственное образовательное учреждение высшего профессионального образования Московская медицинская академия им. И.М.Сеченова | Способ репозиции и фиксации переломов пяточной кости |
| US20040167518A1 (en) | 2002-07-12 | 2004-08-26 | Estrada Hector Mark | Radiolucent frame element for external bone fixators |
| US20040073212A1 (en) * | 2002-10-15 | 2004-04-15 | Kim Jung Jae | Extracorporeal fixing device for a bone fracture |
| US8029505B2 (en) * | 2005-08-25 | 2011-10-04 | Synthes Usa, Llc | External fixation system and method of use |
| RU2357699C2 (ru) * | 2005-12-29 | 2009-06-10 | ООО "Ортофикс" | Компрессионно-дистракционный аппарат |
| US8277448B2 (en) * | 2007-03-07 | 2012-10-02 | Wright Medical Technology, Inc. | External fixation |
| US8257353B2 (en) * | 2010-02-24 | 2012-09-04 | Wright Medical Technology, Inc. | Orthopedic external fixation device |
-
2008
- 2008-04-18 EP EP08154761A patent/EP2110090A1/de not_active Withdrawn
- 2008-06-23 US US12/214,893 patent/US9011438B2/en active Active
-
2009
- 2009-04-15 AT AT09733218T patent/ATE554714T1/de active
- 2009-04-15 WO PCT/EP2009/054471 patent/WO2009127661A1/en not_active Ceased
- 2009-04-15 ES ES09733218T patent/ES2385641T3/es active Active
- 2009-04-15 EP EP09733218A patent/EP2273938B1/de active Active
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2009127661A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| EP2273938B1 (de) | 2012-04-25 |
| US20090264883A1 (en) | 2009-10-22 |
| EP2110090A1 (de) | 2009-10-21 |
| US9011438B2 (en) | 2015-04-21 |
| ES2385641T3 (es) | 2012-07-27 |
| ATE554714T1 (de) | 2012-05-15 |
| WO2009127661A1 (en) | 2009-10-22 |
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